Post Traumatic Osteolysis of lateral end of right clavicle




Bilateral erosions

• hyperparathyroidism

subchondral bony resorption; usually symmetric with osteopenia, abnormal trabecular pattern
the acromion is normal, but the sternoclavicular joint may be affected

• rheumatoid arthritis

bilateral or unilateral changes with soft tissue swelling, subchondral osteoporosis and erosion of the outer third of the clavicle
acromial erosions may occur later in the disease process

• scleroderma
• cleidocranial dysostosis
• pyknodysostosis (rare)

Unilateral erosion

• post-traumatic osteolysis
• myeloma
• metastases
• osteomyelitis